HD 2475,又名BD-21 57,SAO 166296、HR 108,是一顆恆星[1][2],視星等為6.43,位於銀經83.87,銀緯-81.4,其B1900.0坐標為赤經0h 23m 20.2s,赤緯-20° -81.4′ 7″。
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